Ishlanishi: 1) N=AK*3 N=400*3=1200 i-RNK yoki DNK ning bitta
zanjiridagi N lar
2) 1200*2=2400N Javob: B ____________________________
79. 46080 D og’irlikdagi oqsil sinteziga javobgar DNK
tarkibidagi fosfodiefir bog’lar sonini toping.
A) 1152 B) 2304 C) 1150 D) 2302 Ishlanishi: 1) 46080/120=384AK
2) N=AK*3 N=384*3=1152N –bu i-RNK dagi yoki DNK ning
sintezlangan zanjiridagi N lar
3) 1152*2=2304N –bu 2 ta zanjirdagi N lar
4) F=N-2 F=2304-2=2302 2302 Javob: D ____________________________
80. Ma’lum bir oqsil bo’lagida 41 ta peptid bog’ mavjud. Shu
oqsil haqida axborot saqlovchi DNK dagi 3-6-7 juft nukleotidlar
deletsiyaga uchradi. Shundan so’ng hosil bo’lgan oqsildagi
aminokislotalar sonini aniqlang.
A) 41 B) 42 C) 40 D) 43
Ishlanishi: 1) 41+1=42AK
2) N=AK*3 N=42*3=126N –bu i-RNK dagi yoki DNK ning
sintezlangan zanjiridagi N lar
3) Lekin 3 juft N deletsiyaga uchragan (yo’qolgan): 126-3=123
4) AK=N/3 AK=123/3=41 Javob: A ____________________________
81. Ma’lum bir oqsil bo’lagida 41 ta peptid bog’ mavjud. Shu
oqsil haqida axborot saqlovchi DNK dagi 3-6-7 juft nukleotidlar
inversiyaga uchradi. Shundan so’ng hosil bo’lgan oqsildagi
aminokislotalar sonini aniqlang.
A) 41 B) 42 C) 40 D) 43
Ishlanishi: 1) 41+1=42AK
2) N=AK*3 N=42*3=126N –bu i-RNK dagi yoki DNK ning
sintezlangan zanjiridagi N lar
3) Lekin 3 juft N inversiyaga uchragan (o‘z o‘rnini 180° ga
o‘zgartirgan): 126 ta N lar soni o’zgarmagan
4) AK=N/3 AK=126/3=42 Javob: B ____________________________
82. Ma’lum bir oqsil bo’lagida 41 ta peptid bog’ mavjud. Shu
oqsil haqida axborot saqlovchi DNK dagi 3-6-7 juft nukleotidlar
duplikatsiyaga uchradi. Shundan so’ng hosil bo’lgan oqsildagi
aminokislotalar sonini aniqlang.
A) 41 B) 42 C) 40 D) 43
